Porous composition building material



106. COMPOSITIONS,

COATlNG R, PLASTIC said material,

Patented Aug. 2,

UNITED s,'r .TEis- PATENT oFHcE.

DANIEL GAB- 2A, 01' NEW ORLEANS, LOUISIANA.

. ronous courosr'rron 80 Drawing Application filed L n-i126,

The present invention relates to improvements in a porous compositionbuilding material, which isfire proof sound proof, damp proof, elastic,light, strong and is a nonconductor of heat, adheres to wood withoutcracking protecting it a ainst fire and with precast ui'ldlng' nitu nivegetable non'fibrous substance, a crushed monglithiq constl igtigns,plain and remftn'cecl can be made; this material can be nailed,screwed,'bolted, bored, sawed as wood can be treated without fracture orsplitting; can be colored, painted, plastered with cement mortar or anykind of mortar and Y decorated in the usual way.

The improved material Will be found'par-r p ticularly useful forbuilding domes and for forming separate units as beams, slabs, posts andthe like which after formation 'can be sawed or out to the desireddimensions, nailed, or: otherwise secured together to form the desiredstructure; also t e comsosition ma-' terial lends itself readily to moling or casting in situ as a monolithic construction; also can be nailed,screwed, or bolted to wooden frames and wooden posts in a'bended or flatslabs shape to protect them against fire.

The scoriaceous basalt or'basaltic-tophus spon eous stone is of volcanicorigin, light yet strong and'porous, that is to say possessinginnumerablecells, which were produce by gases confined within the moltenor semi molten rock during the process of cooling. While very plentifulthis, stone'is restricted inuse because'it is expensive due todifiiculties in working it inshape; for instance a chisel edge merelybecomes buried in it and it will not split chi or flake off as doesmarble. The reason 2dr this is apparently that the cells under thechisel point break down and permit the chisel to enter. The enetrationof the tool means merely that t e cells in its path break down butvlateral pressure, sufiicient to split the rock is not generated. Todress the stone for use means to pound the surface until the desired sheis produced. This rocess has been satisfactory an expensive.

I have proven by tests that the use of fibrous, earthy and bituminoussubstances are destructive elements in the making f cementcgncrete and,hence are to be avoided. rliave alsd p'roven that scoriaceous basalt, aporous mineral material to be found in large quantities in volcanicregions, is pecuharly adapted for use as a. 'buildmgma terial; thescoriaceous basalt in its natural ound unaunnme m'r'aam.

1928. Serial No. 104,845.

Cross Re ee therefore "I purpose to treat and combine it with otheringredients to gain a final com-' position product which will avoidthese difficulties and secure the object above stated. My compositionconsists of a mixtureof a mineral filler and, a'binder.

1 The invention is concerned with the production of the .artifi cicounterpartof scoriaceous basalt and consiss 1n the followingingredients:

21; Scoriaceous'basalt.

12 Ground or powdered cork or agave u p.

(3) Portland cement.

. (4) 7 Sand (this may or may notbe added.)

tothe strength desired and the purposes for The proportions maybe variedaccording whichfthe finished roduct is to be used, but

the followingisch ule indicates the propertions found best suited to theproduction of units and monolithic constructions:

. Parts. 1 B asalt 1 2 Cork 2 3: Portland cement 1 (4 "Sand 1 'Informing the composition the basalt 1 rock is. reduced, as by crushing,to small particles but it is not ground or powdered,

as this would destroy the cellular structure of the stone and it isimportant such structure be preserved.

The cork is also reduced to small state and is mixed with the cement,water bein added to form a mix and the cork partic es are first stirredwell to distribute same through-e out the cement mix whereby ahomogener,

ous mass is formed; amal am or bmasaifik added, the cement-cork mixbonding to the exterior cells of the basalt and the cementincorporatingthe ingredients and bonding tightly the globules of cork tothe cells of scoriaceous basalt.

scoriaceous basalt increases vthe bulk and strength of the material'andbrings to the final roduct all of its native properties.

endangering the integrity of the concrete as would happen if sawdust orfibrousma The cement is an ordinary binder. The I i Neither the cork nospulp1 are subject to would set up will not take place if the mass isdisturbed internally by movement of its particles or exteriorly bydisturbance.

The cells must be increased mechanically by the inclusion within themass of globules of compressible nonabsorbcnt, nonfibrous material.

This concrete is a globular, cellular concrete, the globular cells thusformed in the concrete com rising a large pro ortion of the mass andbecause of this siape their Walls strongly resist deformation andfracture. The concrete is thereigg li ht yet it heat res1st1n g and yetand waterproof, as can the ordinary constron sound an resemliles ordinarcTificref-e in appearance and con st 1 not be castin suitable shape anddimensioned units and joined to ether in houses and like structures withnails, screws, bolts or other fasteners, as wood is ordinarily 'oined,by

2 reason of the fact, that the we ls of the globular cells are brokendown, as for instance when a nail is driven into it, the mass of thenail taking the place of the aggregation of broken-down cells withoutsplittin or similarly fracturing the concrete.

he cork is cell forming and sound proof, elastic and an insulationenerall without adding substantially to t e weig t of the The cork formsthe elastic globules of the material and forms a composite mass with aclose texture. The cork is compressible when the product is tooled orsawed, screwed or bolted and cushions the cell walls against anyfracture spreading unduly and thecork also grips or clings to nails andother fastenings.

The final product can be perfectly colored, bonded or coated with cementmortars or other mortars and can be equally decorative crete, althoughit is itself not unduly subru c iye utility. It can be cast ject tosaturation by water.

ith and reinforced 'lVhat is claimed.is: 2 with steel as is ordinaryconcrete but may An improved light, strong, orous building materialcomprising Port and cement, sand and scoriaceous basalt in substantiallyequal parts and ground'cork in at least two parts to every .part of thebasalt, said basalt ing reduced to small state short of powderedcondition and havin numerous small cells, said cement, sand an corkforming a mix to receive the cellular basalt and bonding only with theexterior cells of the basalt, leaving the inner cells unfilled, saidcork being cellular to add to the cellular structure of the buildinmaterial.

7 D NIEL GARZA.

